return empty when I enter “”instrhwi​nfo('Bluet​ooth','Hph​one')“”

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HDying
HDying 2014-2-8
回答： Vinod 2015-11-23
>> a = instrhwinfo('Bluetooth')
a =
RemoteNames: {'Hphone'}
RemoteIDs: {'btspp://087A4C001CFC'}
BluecoveVersion: 'BlueCove-2.1.1-SNAPSHOT'
JarFileVersion: 'Version 3.2'
>> instrhwinfo('Bluetooth','Hphone')
ans =
RemoteName: []
RemoteID: []
ObjectConstructorName: []
Channels: []

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回答（2 个）

HDying
HDying 2014-2-8
编辑：HDying 2014-2-8
thx everybody, I think I find the reason. that is the device is cellphone. the key is it can't run the SPP profile. Look this for details. : http://www.mathworks.com/matlabcentral/answers/98837
Vinod
Vinod 2015-11-23
In this case this was because the phone did not support Bluetooth Serial Port Profile.
Note that this may also have to do with the device going into a power save mode and not being discoverable. If you are sure the device supports Bluetooth SPP, try power cycling your device and then executing
>>instrhwinfo('bluetooth','_myDevice_')
Note that the information returned is frequently usable even if the device is in power save mode, so you only potentially need this information once.

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